Solution to Repair Concrete Cracks, Mitigate Rebar Corrosion and Concrete Carbonation
Concrete deterioration caused by cracking, carbonation, and rebar corrosion represents a multi-billion-dollar global challenge. The global concrete repair market is valued at approximately USD 20 billion. Current methods are often labour-intensive, disruptive, or temporary, creating a strong demand for durable, cost-effective, and sustainable repair solutions. This innovation addresses these needs with a two-part treatment system that restores durability and prevents further structural damage:
Water-based Concrete Sealer: Applied directly to concrete and steel surfaces, it prevents the ingress of water and corrosive agents (e.g., chlorides). This reduces the rate of concrete carbonation and rebar corrosion, while also functioning as an anti-corrosion coating for steel reinforcement.
Micro-cementitious Crack Injection Sealant: A flowable, non-shrink material designed for sealing narrow concrete cracks (≥1.0 mm). When injected into damaged concrete, it consolidates the structure, re-alkalises adjacent carbonated concrete, and protects embedded steel rebars. By reinstating the passivating layer around embedded bars, it slows corrosion and reduces the likelihood of further cracking. Unlike traditional polyurethane injections, it provides durable, long-lasting repair without shrinkage.
Both the water-based sealer and micro-cementitious sealant can be used independently or in combination, depending on the protection and repair requirements.
This technology is available for R&D collaboration, IP licensing, and test-bedding with industrial partners in the construction and infrastructure sectors.